Composition for blackening copper and copper alloy surfaces
United States Patent 2460896
US Patent References:
Cleansing and sterilizing preparation
- - 1339783
Prevention of caking of crystals, powders, and the like
- - 1811699
Stable calcium hypochlorite composition
- - 1961576
Bleaching of cellulosic materials
- - 2145062
Process for blackening copper or copper alloy surfaces
- - 2364993
Cleansing and sterilizing preparation
- - 1339783
Prevention of caking of crystals, powders, and the like
- - 1811699
Stable calcium hypochlorite composition
- - 1961576
Bleaching of cellulosic materials
- - 2145062
Process for blackening copper or copper alloy surfaces
- - 2364993
Inventors:
Meyer, Walter R.
Publication Date:
02/08/1949
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Export Citation:
Assignee:
Enthone
Primary Class:
Other Classes:
252/187.230
International Classes:
C23C22/63; C23C22/05
Foreign References:
| FR330699A |